| UNION LIGHT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PURE UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CHAIN LIMITED | Private company limited by shares | Live |
| UNITED ENAMELWARE COMPANY LIMITED | Private company limited by shares | Live |
| LONG UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| COIN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWELL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNMENTIONABLES LIMITED | Private company limited by shares | Dissolved |
| NEW UNITED LAUNDRY LIMITED | Private company limited by shares | Live |
| UNIFORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIMIX LIMITED | Private company limited by shares | Live |
| UNIFIED MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Jan-1999 |
| FU SHAN AND KING SHAN TAICHE STUDENT UNION LIMITED | Company limited by guarantee | Dissolved |
| UNION HONEST INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITHRUST LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| S.M.K. UNITED LIMITED | Private company limited by shares | Live |
| UNIJET INVESTMENTS LIMITED | Private company limited by shares | Live |
| BIG UNION MOTORS LIMITED | Private company limited by shares | Live |
| Global Union Transportation Limited | Private company limited by shares | Live |
| UNIVERSAL GAIN TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MATE LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL JEWELLERY COMPANY LIMITED | Private company limited by shares | Live |
| UNITED EYE-CARE CENTRE LIMITED | Private company limited by shares | Dissolved |
| UNITED CREATION LIMITED | Private company limited by shares | Dissolved |
| UNION PRECISION TOOLS MACHINERY LIMITED | Private company limited by shares | Dissolved |
| UNISPEED LIMITED | Private company limited by shares | Dissolved |
| GROUP UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HEART UNION TAXI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| UNION POINT SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION SKY LIMITED | Private company limited by shares | Dissolved |
| SOON UNION LIMITED | Private company limited by shares | Dissolved |
| UNITCOST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITWEAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOLIDAYS UNLIMITED LIMITED | Private company limited by shares | Dissolved |
| UNITPEACE COMPANY LIMITED | Private company limited by shares | Live |
| UNION MANOR INVESTMENT LIMITED | Private company limited by shares | Live |
| GROW UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNITED VIDEO DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| UNIWAY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SOLAR UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SCANNER CRAFT LIMITED | Private company limited by shares | Dissolved |
| UNICAM LIMITED | Private company limited by shares | Dissolved |
| UNIC COMPANY LIMITED | Private company limited by shares | Live |
| UNI-FALCON LIMITED | Private company limited by shares | Dissolved |
| FABRICS UNLIMITED LIMITED | Private company limited by shares | Dissolved |
| SOLAR UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION TEAM LIMITED | Private company limited by shares | Live |
| UNIQUE OIL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNINEGO LIMITED | Private company limited by shares | Dissolved |
| UNIPED LIMITED | Private company limited by shares | Dissolved |
| UNIPRO CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION SQUARE LIMITED | Private company limited by shares | Live |
| UNIONPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAIR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WUSHU UNION LIMITED | Company limited by guarantee | Live |
| FINE UNION LIMITED | Private company limited by shares | Live |
| UNIMAN LIMITED | Private company limited by shares | Live |
| UNIHALL LIMITED | Private company limited by shares | Dissolved |
| UNIONMATE LIMITED | Private company limited by shares | Live |
| UNI-ORIENT LIMITED | Private company limited by shares | Dissolved |
| UNI-SUPER COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-LONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOY UNION ESTATE LIMITED | Private company limited by shares | Live |
| UNITED CENTRE INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNIVERSAL MULTIMEDIA CO., LIMITED | Private company limited by shares | Live Ceased dormancy on 16-Jun-2000 |
| UNIVERSAL FAME MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNION TECH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIWEALTH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HATS & CAPS MANUFACTURING, LIMITED | Private company limited by shares | Live |
| A-TEX UNION UNDER-FASHION FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNLIMITED RESOURCES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH MAGNETIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH PHOTO SUPPLIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUILD UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOINT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOFT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MOTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISPORT LIMITED | Private company limited by shares | Dissolved |
| SOON UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| LAND UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITOP LIMITED | Private company limited by shares | Dissolved |
| UNION TRIP LIMITED | Private company limited by shares | Dissolved |
| UNION PACKO LIMITED | Private company limited by shares | Dissolved |
| UNION ZONE LIMITED | Private company limited by shares | Live |
| UNISON FORTUNE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED FINE LIMITED | Private company limited by shares | Live |
| UNITED HOPE LIMITED | Private company limited by shares | Dissolved |
| UNITED POINT LIMITED | Private company limited by shares | Dissolved |
| UNITED COASTAL CO. LIMITED | Private company limited by shares | Dissolved |
| UNIQUECO COMPANY LIMITED | Private company limited by shares | Dissolved |
| RAINBOW UNION LIMITED | Private company limited by shares | Dissolved |
| UNIFULL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWIN COMPANY LIMITED | Private company limited by shares | Dissolved |